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5. Archaeologist: A skeleton of a North Americanmastodon that became extinct at the peak of theIce Age was recently discovered. It contains ahuman-made projectile dissimilar to any foundin that part of Eurasia closest to North America.Thus, since Eurasians did not settle in NorthAmerica until shortly before the peak of the IceAge, the first Eurasian settlers in North Americaprobably came from a more distant part ofEurasia.Which one of the following, if true, most seriouslyweakens the archaeologist’s argument?(A) The projectile found in the mastodon does notresemble any that were used in Eurasia beforeor during the Ice Age.(B) The people who occupied the Eurasian areaclosest to North America remained nomadicthroughout the Ice Age.(C) The skeleton of a bear from the same place andtime as the mastodon skeleton contains asimilar projectile.(D) Other North American artifacts from the peak ofthe Ice Age are similar to ones from the sametime found in more distant parts of Eurasia.(E) Climatic conditions in North America justbefore the Ice Age were more conducive tohuman habitation than were those in the partof Eurasia closest to North America at thattime.